Ice-machine.



J. G. MoGALL.

ICE MACHINE.

APPLICATION FILED FEB.4, 1908.

912,873. Patented Feb. 16, 1909.

W/T E3858 INVENT OH 'faa'o'aflf fialZ I Mora A TTOHNE Y S- I No .912,873.

STATES PATENT OFFICE.

JACOB C. McCALL, OF COLORADO, TEXAS.

ICE -MACHINE To allgftbl'ioindt may concem:

Be it known that I, Jason C. MCCALL, a

' citizen of the United States, and a resident of Colorado, in the county of Mitchell and State of Texas, have invented a new and Improved Ice-Machine, of which the following-is a full, clear, and exact description.

'This invention is an improved a paratus for the manufacture of ice in smal quantities, more especially designed for those living in sparsely settled sections and isolated places, where they are unable to, or cannot reasonably, obtain a supply of ice from regular manufacturers.

The object of the invention is to provide an ice machine in which the freezing is effected by theaIternate rarefaction and expansion of air in a sealed chamber in which a receptacle containingfliwater to be frozen is placed. To this end I connect the chamber at different points with the inlet and outlet of a pum referably manually operated, and rovid e t e outlet connection with a coil in w iich the air is adapted to be compressed and cooled preparatory to its expansion in the chamber; the cooling of the coil bein preferably accomplished. by an atomize water spray, the air of which is supplied from the pump.

Reference isv to be had to the accompanying drawing wherein is illustrated, partly in central sectlon, an apparatus for making ice, embodying my invention.

More specifically described, the invention includes an air-tight chamber 5, the walls of which are suitably lined and insulated to prevent the dissipation of the cold. lVithin the chamber, preferably intermediate its height, is supported a receptacle 6, for containing the water to be frozen, which is accessible by removing a suitable portion of the casing, which, in the present instance, is shown to be its top.

A manually-operated pump 7 has its inlet connected with the casing.through a pipe 8 which is provided with a controlling valve 9, and the outlet end of. the pump is connected with the chamber above the receptacle througha pipe 10, the latter being provided with an uprr ht coil or other suitable container 11 1n its length and with valves 12 and 13 arran ed at opposite sides of the coil. The'outlet of the pump also connects with a pressure tank 14 through a pipe 15 which is provided with a controlling-valve 16. The

Specification of Letters Patent.

Application filed February 4, 1908. Serial No. 414,150.

Patented Eeb. 16, 1909.

coil 11 is surrounded by a casing 17 having a vent 17%, and the walls of which are lined and insulated as in the case of the Walls of the chamber 5, and is provided at its bottom with a drain pipe 18, leading into the upper portion of a small water tank 19. Passing within the tank 19 to a point near its bottom is an upright nozzle 20 which extends through the casing of the coil and discharges directly under the latter in the direction of its bore or longitudinal axis. Air from the pressure tank 14 is introduced into the nozzle above the tank by a pipe 21 having a controlling-valve 22.

The operation of the machine is as follows: After the receptacle 6 has been filled with water and the chamber 5 closed or sealed, the pump 7 is operated to exhaust the air from the chamber and compress it in the coil; the valves 9 and 12 at, this time being open and the valves 13 and 16 closed. If the volume of air within the chamber is insufiicient to obtain the desired compression in the coil, the air from the atmosphere may be lead directly into the pump, for which purpose I have shown a valve-controlled pipe 23. Air through this last-named valve may be. introduced and compressed in the compression tank v14: by the aid of the pump,

after closing the valves 9 and 12 and opening the valve 16. With the air compressed in the coil 11 and with an air pressure supply in the tank 14, the valve 22 is opened,

which permits the passa e of the air through.

the discharge end of t e nozzle, drawing with it the water from the tank'1'9 and offectually breaking it up in an atomizing spray and discharging the same throughout the inside of the coil. The water as itdrops in the coil casing asses through the dram pipe 18 into the tanli 19, and is accordingly .repeatedly used. The air from the spray escapes through the vent 17 in the upper portion of the casing. After the coil has been reduced to a temperature as low as may be obtained by thespray, the valve 13 is o ened, which releases the compressed air in t e coil to the chamber, thereby. greatly lowering the temperature, which, in connection with the dropping of the temperature resulting from the evaporation caused by the exhaustion of the air from the chamber, should be sufficient to freeze the water in the receptacle. If, however, the temperature is not sufficiently reduced for this purpose, the

rarefaction and expansion of the air within the chamber, as hereinbefore described, may be repeated.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. The combination of an air-tight chamber, a receptacle adapted to contain water, within the chamber, an air compression tank, a container connected with the chamber, an air pump having a connection with the chamber at its inlet, and a connection at its outlet with the container and with the air compression tank, whereby the air may be exhausted from the chamber and compressed within the container and the tank, a water tank, and a nozzle having a connection with thewater tank and air compression tank for directing an atomized spray on the container.

2. In an ice machine, the combination of a casing, an uprightcontainer in the easing into which a freezing medium is adapted to 'be compressed, a water tank, a drain leading from the casing to the water tank, a nozzle directed to the container, and means for introducing fluid pressure in the nozzle, whereby the water is drawn from the tank and sprayed on the coil and again returns to the water tank through the drain pipe.

3. In an ice machine, a container, :1 compression tank, a pump having means for compressing a freezing medium in either the container or tank, a water supply having a nozzle directed to the container, and

erases means for passing the fluid pressure from the tank into the nozzle to atomize the water be compressed, a water tank under the easing, a drain pipe leading from the lower portion of the casing to the water tank, an upright nozzle passing from the water tank and directed on the container, and means for introducing fluid pressure into the nozzle for drawing the water therethrough from the tank and spraying it on the container.

5. The combination of an air-tight chamher, a receptacle within the chamber adapted to hold water, an air compression tank, a 7

container having a valve-controlled connection with the chamber, an air pump having a connection between its inlet and the chamber,valve-controlled connections respectively between the container and compression tank and the outlet of the pump, a water tank,

and a nozzle connected with the water tank having a connection with the compression tank.

In testimony wherepf I have signedmy name to this specification in the presence of two subscribing witnesses.

moon 0. MCCALL.

Witnesses:

WALTER CLIFTON SHEPPARD. Fnnn Fons) SAMPSON. 

